The singer was chosen to sing for the US President at a reception during Donald Trump’s 11-day Asia visit.

Shinzo Abe, Donald Trump and Pikotaro at a reception in Japan. (Twitter/Pikotaro)

The maker of one of the most groovy, and viral, songs of last year met US President Donald Trump on Monday.

Trump met Pikotaro -- the singer of hit song “pen-pineapple-apple-pen” -- on his visit to Japan on Monday at a reception hosted by Japanese Prime Minister Shinzo Abe, reported The Guardian.

The photo shows a beaming Pikotaro -- whose real name is Kazuhito Kosaka -- flanked by Trump and Abe.

The singer was chosen to sing for the President at the reception during Trump’s 11-day Asia visit, the Kyodo news agency had said.

Pikotaro said it was an honour to meet Trump and Abe: “I have had a very valuable experience in my life today. Also, I just make fun music. And I want to deliver a small smile to everyone,” Kosaka tweeted, posting more than 15 images from the event.

The 45-second “PPAP” ditty went viral last year after being shared by pop star Justin Bieber. The singer is apparently a favourite of Trump’s grandchildren after Arabella Kushner, the six-year-old daughter of Ivanka Trump and Jared Kushner, was seen singing along to the tune in a clip shared on Instagram in November by her mother.

The repetitive earworm, whose video features the dancing Pikotaro dressed in his garish animal-print costume, set a Guinness World Record as the shortest song to break into the Billboard Hot 100.